I have a web page and I want to do something with user input text. Normally, <input type="text" /> is used inside a <form> nesting and setting input without form attribute is not acceptable in html strict schema. I want to avoid <form>, but still want some text field to use with JavaScript.
I am seeking an example with an option for text input and alert input data on 开发者_JS百科click of a button, with/without jQuery.
Using W3C's validator, this passes HTML 4.01 Strict:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>test</title>
</head>
<body>
<p><input type="text" value="hi"></p>
</body>
</html>
and this passes XHTML 1.0 Strict:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>test</title>
</head>
<body>
<p><input type="text" value="hi" /></p>
</body>
</html>
The problem is that <input> is an inline tag and thus needs to be inside something that accepts such tags (<body> does not).
Having a closer look at the DTD, an input element is part of the inline (lets call it) group:
<!ENTITY % formctrl "INPUT | SELECT | TEXTAREA | LABEL | BUTTON">
<!-- %inline; covers inline or "text-level" elements -->
<!ENTITY % inline "#PCDATA | %fontstyle; | %phrase; | %special; | %formctrl;">
So wherever inline is allowed, so is input. That means you don't need a form.
E.g. in a div:
<!ENTITY % flow "%block; | %inline;">
(...)
<!ELEMENT DIV - - (%flow;)* -- generic language/style container -->
But not as you mentioned in a comment, in the body:
<!ELEMENT BODY O O (%block;|SCRIPT)+ +(INS|DEL) -- document body -->
(I think it goes without saying that block does not contain inline).
It's perfectly OK to have an input element without a form. Where does it say it's not allowed?
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